National Manual on Uniform Traffic Control Devices 2023 Review

The National Manual on Uniform Traffic Control Devices (MUTCD) 2023 (11th Edition) is published by the Federal Highway Administration (FHWA) under 23 Code of Federal Regulations (CFR), Part 655, Subpart F. On December 19, 2023, a Final Rule adopting the National MUTCD 2023 was published in the Federal Register with an effective date of January 18, 2024. States must adopt the National MUTCD as their legal State standard for traffic control devices within two years from the effective date. Caltrans will need to revise the current CA Manual on Uniform Traffic Control Devices (CA MUTCD) 2014 Revision 8 to bring it into substantial conformance with FHWA's National MUTCD 2023 on or before January 18, 2026.

Caltrans began the process to review the National MUTCD 2023 for adoption in California by soliciting CA MUTCD practitioners statewide to form 10 Subject Matter Expert (SME) Workgroups based on the individual Parts of the MUTCD. The SME Workgroup's reviews are being conducted in weekly/bi-weekly meetings, which began earlier this year in February. These SME Workgroup reviews compare the new National MUTCD 2023 (11th Edition) with California revised contents of the National MUTCD 2009 (10th Edition) in the current CA MUTCD 2014 Revision 8 and focus on assessing potential impacts of adopting the new MUTCD changes in California. SME Workgroups provide comments and recommendations to Caltrans on developing the revised CA MUTCD 2026 draft contents.

Caltrans is preparing initial draft documents on the MUTCD parts. Each individual part will be shared with the traffic control device practitioners in California and made open to the public for review and to provide comment. Each part will be posted based on when it is completed, and the public comment period and date for closing of comments will vary. All comments received will be discussed with the respective SME Workgroup members for resolution and response, as appropriate, and will be used to prepare the final draft. The final draft will then be prepared as an agenda item for the California Traffic Control Devices Committee (CTCDC) meeting (public hearing) and made open to the public for review and comment, using CTCDC established process and in compliance with California Vehicle Code (CVC) 21400 provisions. The final draft will be revised based on CTCDC recommendations and submitted to FHWA CA Division office for review and determination of substantial conformance finding in compliance with 23 CFR 655.603(b). Finalized CA MUTCD 2026 version will be issued after receiving FHWA's determination on finding the final draft documents to be in substantial conformance with National MUTCD and incorporating FHWA's comments, if any, to ensure compliance. Refer to the CA MUTCD 2026 Draft Timeline and SME Workgroup Leads documents for more details on the overall process, including public reviews, CTCDC and FHWA CA Division engagement, schedule and finalization of the CA MUTCD 2026 draft.

These draft documents combine the National MUTCD 2023 and the current CA MUTCD 2014 Revision 8 (effective January 11, 2024) to form the CA MUTCD 2026 draft version. Though every effort has been made by Caltrans to ensure accuracy of this document, the inherent variances between the National MUTCD and the California MUTCD, along with moving of contents and reorganization undertaken by FHWA in the National MUTCD 2023, there may be unintentional errors or omissions in this document, or some contents may have been overlooked.

 

 

These draft documents use the current California MUTCD format, which is similar to the National MUTCD format. It incorporates the National MUTCD in its entirety and explicitly shows which portions thereof are applicable or not applicable in California as follows:
  Unedited black text - The unedited National MUTCD text is shown in "Times New Roman" font and black color.
  Strikethrough black text - Text portions of the National MUTCD content that are not applicable in California are showing with a strikethrough of the black text and a blue margin line on the right side.
  Blue text - The California text additions, including new paragraphs, and enhancements are incorporated into the combined document at appropriate locations and show in "Arial Narrow" font and blue font color with a blue margin line on the right side.
  California topics with no corresponding National MUTCD section - Sections are given a number that begins with number 101 and increases in sequence, followed with a "(CA)" to indicate that this is a California created section.

CA MUTCD 2026 - Draft Documents
(open to public for review and comments; all files are PDFs)
CA MUTCD 2026 to be issued on or before 1/18/2026
Intro and Part 1  (NMUTCD Introduction and Part 1 text have been combined and reorganized into Part 1 Chapters 1A - 1D)
Date Posted   8/19/2024 Mark-Up Files (for comparison) CTCDC Meeting
(Public Hearing)
FHWA CA Division Review Submittal Finalized per FHWA CA Division Review Finalized for CA MUTCD 2026 Inclusion 
Date Closed* (for comments)  11/25/2024  Unedited black text** Strikethrough black text and blue text***
Text # Chapter Name Contents
1A General (Text) Text NMUTCD - Intro & Part 1 CA MUTCD - Intro Part 1 2/6/25 & 7/8/25 CTCDC Meetings (See Agenda Item #25-01 & Meeting Minutes)  Review submittal pending submission to FHWA CA Division
FHWA review pending submission of review submittal by Caltrans
Finalization pending FHWA review and submission of review submittal to FHWA
1B Legal Requirements for Traffic Control Devices Text NMUTCD - Intro & Part 1 CA MUTCD - Intro Part 1
Tables NMUTCD - 1B CA MUTCD - 1B
1C Definitions, Acronyms, and Abbreviations Used in This Manual (Text) Text NMUTCD - Intro & Part 1 CA MUTCD - Intro Part 1
1D Provisions Applicable to Traffic Control Devices in General Text NMUTCD - Intro & Part 1 CA MUTCD - Intro Part 1
Tables NMUTCD - 1D CA MUTCD - 1D
1 General Figures NMUTCD CA MUTCD
Tables NMUTCD - 1A CA MUTCD - 1A
Part 4 Highway Traffic Signals
Date Posted  7/11/2025 Mark-Up Files (for comparison) CTCDC Meeting (Public Hearing) FHWA CA Division Review Submittal Finalized per FHWA CA Division Review Finalized for CA MUTCD 2026 Inclusion
Date Closed* (for comments) Unedited black text** Strikethrough black text and blue text***
Text #  Chapter Name Contents
4I Pedestrian Control Features CA MUTCD Text Pending finalization of all Part 4 Chapters Pending finalization of all Part 4 Chapters Pending finalization of all Part 4 Chapters Pending finalization of all Part 4 Chapters
Pending finalization of all Part 4 Chapters
Pending finalization of all Part 4 Chapters
CA MUTCD Figures
4M Traffic Control Signals for Emergency-Vehicle Access CA MUTCD Text
4N Hybrid Beacons for Emergency-Vehicle Access CA MUTCD Text
CA MUTCD Figures
4O Traffic Control Signals for One-Lane, Two-Way Facilities
CA MUTCD Text
4Q Traffic Control for Movable Bridges
CA MUTCD Text
4R Highway Traffic Signals at Toll Plazas CA MUTCD Text
4S Flashing Beacons  CA MUTCD Text
4U In-Roadway Warning Lights CA MUTCD Text
Part 5 Traffic Control Device Considerations for Automated Vehicles
Date Posted 06/10/2024 Mark-Up Files (for comparison)  CTCDC Meeting (Public Hearing)  FHWA CA Division Review Submittal
 Finalized per FHWA CA Division Review
Finalized for CA MUTCD 2026 Inclusion 
Date Closed* (for comments) 09/02/2024 Unedited black text** Strikethrough black text and blue text***
Text # Chapter Name Contents
5A General Text No comparison documents are available for Part 5 for the National MUTCD or CA MUTCD versions, as Part 5 is completely new material in the National MUTCD. Relevant provisions from the previous version of Part 5, Low Volume Roads, have been moved to other Parts of the National MUTCD and CA MUTCD comparison documents, as appropriate. 11/7/24 CTCDC Meeting
(See Agenda Item 24-11 & Meeting Minutes)
4/3/25 CTCDC Meetings (See Agenda Item #24-11 & Meeting Minutes)  4/3/25 CTCDC Meetings (See Agenda Item #24-11 & Meeting Minutes)

Finalization pending table formatting

Table
5B Provisions for Traffic Control Devices Text
Part 7 Traffic Control for School Areas
Date Posted 06/13/2024 Mark-Up Files (for comparison) CTCDC Meeting (Public Hearing)
FHWA CA Division Review Submittal 
Finalized per FHWA CA Division Review
Finalized for CA MUTCD 2026 Inclusion
Date Closed* (for comments) 09/02/2024 Unedited black text** Strikethrough black text and blue text***
Text # Chapter Name Contents
7A  General
Text NMUTCD - 7A CA MUTCD - 7A 11/7/24 & 4/3/25 CTCDC Meetings
(See Agenda Item 24-12 & Meeting Minutes)
 7/8/25 CTCDC Meetings (See Agenda Item #24-12 & Meeting Minutes)

FHWA review pending

Finalization pending FHWA review

Figures NMUTCD - 7A CA MUTCD - 7A 
7B  Signs Text NMUTCD - 7B CA MUTCD - 7B
Figures NMUTCD - 7B CA MUTCD - 7B
Tables NMUTCD - 7B CA MUTCD - 7B
7C Markings
Text NMUTCD - 7C CA MUTCD - 7C
Figures NMUTCD - 7C  CA MUTCD - 7C
7D Crossing Supervision Text NMUTCD - 7D CA MUTCD - 7D

Note: All individual parts will be continually posted as they become ready and available for web posting.

*If more time is needed for review, please submit a comment and an extension of the review period may be considered.
**Compare documents (in this column) include identification of changes to Unedited black text provided by FHWA comparing National MUTCD 2009 and 2023 editions.
***Compare documents (in this column) include identification of changes to both, Strikethrough black text and blue text contents of CA MUTCD provided by Caltrans using current CA MUTCD 2014 Revision 8.

Submitting Comments on the Draft CA MUTCD 2026

Please submit your Comments on Draft CA MUTCD 2026 (PDF | DOCX) on the initial draft of the CA MUTCD 2026. Note that comments over the phone (verbal) will not be accepted due to the difficulty in their documentation. Comments may be submitted either electronically or mailed per information below.

Email: camutcd@dot.ca.gov

Mailing Address:

  Attention: Johnny Bhullar
Editor, CA MUTCD, MS-36
  Office of Safety Systems & Devices
  Caltrans, Division of Safety Programs
P.O. Box 942874
Sacramento, CA 94274-0001